/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 00:47:48,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 00:47:48,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 00:47:48,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 00:47:48,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 00:47:48,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 00:47:48,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 00:47:48,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 00:47:48,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 00:47:48,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 00:47:48,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 00:47:48,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 00:47:48,762 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 00:47:48,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 00:47:48,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 00:47:48,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 00:47:48,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 00:47:48,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 00:47:48,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 00:47:48,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 00:47:48,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 00:47:48,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 00:47:48,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 00:47:48,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 00:47:48,771 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 00:47:48,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 00:47:48,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 00:47:48,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 00:47:48,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 00:47:48,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 00:47:48,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 00:47:48,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 00:47:48,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 00:47:48,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 00:47:48,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 00:47:48,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 00:47:48,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 00:47:48,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 00:47:48,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 00:47:48,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 00:47:48,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 00:47:48,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 00:47:48,789 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 00:47:48,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 00:47:48,790 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 00:47:48,790 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 00:47:48,790 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 00:47:48,790 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 00:47:48,791 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 00:47:48,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 00:47:48,791 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 00:47:48,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 00:47:48,791 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 00:47:48,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 00:47:48,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 00:47:48,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 00:47:48,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 00:47:48,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 00:47:48,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 00:47:48,791 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 00:47:48,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 00:47:48,792 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 00:47:48,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 00:47:48,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 00:47:48,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 00:47:48,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 00:47:48,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 00:47:48,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 00:47:48,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 00:47:48,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 00:47:48,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 00:47:48,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 00:47:48,793 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 00:47:48,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 00:47:48,793 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 00:47:48,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 00:47:48,793 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 00:47:48,793 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 00:47:48,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 00:47:49,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 00:47:49,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 00:47:49,015 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 00:47:49,020 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 00:47:49,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2023-04-02 00:47:50,128 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 00:47:50,236 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 00:47:50,237 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2023-04-02 00:47:50,242 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abe2cd75b/fd544fc61e6a4eedb28aa4a319d75b4c/FLAGc08ef6458 [2023-04-02 00:47:50,252 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abe2cd75b/fd544fc61e6a4eedb28aa4a319d75b4c [2023-04-02 00:47:50,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 00:47:50,255 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 00:47:50,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 00:47:50,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 00:47:50,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 00:47:50,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 12:47:50" (1/1) ... [2023-04-02 00:47:50,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae9ffe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:50, skipping insertion in model container [2023-04-02 00:47:50,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 12:47:50" (1/1) ... [2023-04-02 00:47:50,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 00:47:50,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 00:47:50,506 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2023-04-02 00:47:50,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 00:47:50,537 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 00:47:50,563 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2023-04-02 00:47:50,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 00:47:50,588 INFO L208 MainTranslator]: Completed translation [2023-04-02 00:47:50,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:50 WrapperNode [2023-04-02 00:47:50,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 00:47:50,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 00:47:50,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 00:47:50,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 00:47:50,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:50" (1/1) ... [2023-04-02 00:47:50,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:50" (1/1) ... [2023-04-02 00:47:50,627 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:50" (1/1) ... [2023-04-02 00:47:50,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:50" (1/1) ... [2023-04-02 00:47:50,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:50" (1/1) ... [2023-04-02 00:47:50,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:50" (1/1) ... [2023-04-02 00:47:50,647 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:50" (1/1) ... [2023-04-02 00:47:50,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:50" (1/1) ... [2023-04-02 00:47:50,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 00:47:50,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 00:47:50,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 00:47:50,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 00:47:50,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:50" (1/1) ... [2023-04-02 00:47:50,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 00:47:50,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 00:47:50,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 00:47:50,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 00:47:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 00:47:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 00:47:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 00:47:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2023-04-02 00:47:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-04-02 00:47:50,764 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 00:47:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 00:47:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 00:47:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 00:47:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 00:47:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2023-04-02 00:47:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 00:47:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-04-02 00:47:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 00:47:50,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 00:47:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 00:47:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-04-02 00:47:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-04-02 00:47:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 00:47:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 00:47:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 00:47:50,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 00:47:50,876 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 00:47:50,878 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 00:47:51,224 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 00:47:51,229 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 00:47:51,230 INFO L302 CfgBuilder]: Removed 14 assume(true) statements. [2023-04-02 00:47:51,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 12:47:51 BoogieIcfgContainer [2023-04-02 00:47:51,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 00:47:51,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 00:47:51,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 00:47:51,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 00:47:51,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 12:47:50" (1/3) ... [2023-04-02 00:47:51,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b43ed89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 12:47:51, skipping insertion in model container [2023-04-02 00:47:51,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:47:50" (2/3) ... [2023-04-02 00:47:51,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b43ed89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 12:47:51, skipping insertion in model container [2023-04-02 00:47:51,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 12:47:51" (3/3) ... [2023-04-02 00:47:51,236 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2023-04-02 00:47:51,250 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 00:47:51,250 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 00:47:51,281 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 00:47:51,285 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@36881137, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 00:47:51,285 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 00:47:51,288 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 45 states have internal predecessors, (69), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-04-02 00:47:51,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-04-02 00:47:51,293 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 00:47:51,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 00:47:51,294 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 00:47:51,298 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 00:47:51,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1596748491, now seen corresponding path program 1 times [2023-04-02 00:47:51,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 00:47:51,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198891273] [2023-04-02 00:47:51,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 00:47:51,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 00:47:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:47:51,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 00:47:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:47:51,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 00:47:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:47:51,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 00:47:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:47:51,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 00:47:51,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 00:47:51,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198891273] [2023-04-02 00:47:51,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198891273] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 00:47:51,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 00:47:51,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 00:47:51,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98872575] [2023-04-02 00:47:51,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 00:47:51,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 00:47:51,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 00:47:51,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 00:47:51,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 00:47:51,614 INFO L87 Difference]: Start difference. First operand has 55 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 45 states have internal predecessors, (69), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-02 00:47:51,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 00:47:51,798 INFO L93 Difference]: Finished difference Result 102 states and 150 transitions. [2023-04-02 00:47:51,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 00:47:51,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2023-04-02 00:47:51,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 00:47:51,809 INFO L225 Difference]: With dead ends: 102 [2023-04-02 00:47:51,809 INFO L226 Difference]: Without dead ends: 51 [2023-04-02 00:47:51,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 00:47:51,821 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 59 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 00:47:51,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 7 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 00:47:51,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-04-02 00:47:51,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-04-02 00:47:51,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 42 states have internal predecessors, (51), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-02 00:47:51,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 60 transitions. [2023-04-02 00:47:51,862 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 60 transitions. Word has length 25 [2023-04-02 00:47:51,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 00:47:51,862 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 60 transitions. [2023-04-02 00:47:51,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-02 00:47:51,863 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 60 transitions. [2023-04-02 00:47:51,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-04-02 00:47:51,864 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 00:47:51,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 00:47:51,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 00:47:51,867 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 00:47:51,868 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 00:47:51,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1147309986, now seen corresponding path program 1 times [2023-04-02 00:47:51,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 00:47:51,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601107525] [2023-04-02 00:47:51,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 00:47:51,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 00:47:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:47:51,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 00:47:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:47:52,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 00:47:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:47:52,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 00:47:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:47:52,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 00:47:52,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 00:47:52,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601107525] [2023-04-02 00:47:52,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601107525] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 00:47:52,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 00:47:52,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 00:47:52,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170445320] [2023-04-02 00:47:52,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 00:47:52,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 00:47:52,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 00:47:52,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 00:47:52,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 00:47:52,050 INFO L87 Difference]: Start difference. First operand 51 states and 60 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 00:47:52,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 00:47:52,240 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2023-04-02 00:47:52,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 00:47:52,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2023-04-02 00:47:52,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 00:47:52,241 INFO L225 Difference]: With dead ends: 54 [2023-04-02 00:47:52,242 INFO L226 Difference]: Without dead ends: 51 [2023-04-02 00:47:52,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-04-02 00:47:52,243 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 57 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 00:47:52,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 5 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 00:47:52,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-04-02 00:47:52,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-04-02 00:47:52,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 42 states have (on average 1.1904761904761905) internal successors, (50), 42 states have internal predecessors, (50), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-04-02 00:47:52,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2023-04-02 00:47:52,250 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 27 [2023-04-02 00:47:52,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 00:47:52,251 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2023-04-02 00:47:52,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-02 00:47:52,251 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2023-04-02 00:47:52,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-04-02 00:47:52,252 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 00:47:52,252 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 00:47:52,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 00:47:52,252 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 00:47:52,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 00:47:52,253 INFO L85 PathProgramCache]: Analyzing trace with hash -232602481, now seen corresponding path program 1 times [2023-04-02 00:47:52,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 00:47:52,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502319681] [2023-04-02 00:47:52,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 00:47:52,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 00:47:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 00:47:52,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-04-02 00:47:52,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-04-02 00:47:52,395 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-04-02 00:47:52,396 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-04-02 00:47:52,397 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 00:47:52,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 00:47:52,400 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-04-02 00:47:52,403 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 00:47:52,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 12:47:52 BoogieIcfgContainer [2023-04-02 00:47:52,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 00:47:52,443 INFO L158 Benchmark]: Toolchain (without parser) took 2187.58ms. Allocated memory was 183.5MB in the beginning and 278.9MB in the end (delta: 95.4MB). Free memory was 135.6MB in the beginning and 188.3MB in the end (delta: -52.8MB). Peak memory consumption was 43.4MB. Max. memory is 8.0GB. [2023-04-02 00:47:52,443 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 134.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 00:47:52,443 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.35ms. Allocated memory is still 183.5MB. Free memory was 135.6MB in the beginning and 124.4MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-04-02 00:47:52,444 INFO L158 Benchmark]: Boogie Preprocessor took 60.65ms. Allocated memory is still 183.5MB. Free memory was 124.0MB in the beginning and 122.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-02 00:47:52,444 INFO L158 Benchmark]: RCFGBuilder took 580.94ms. Allocated memory is still 183.5MB. Free memory was 122.3MB in the beginning and 104.9MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-04-02 00:47:52,444 INFO L158 Benchmark]: TraceAbstraction took 1210.08ms. Allocated memory was 183.5MB in the beginning and 278.9MB in the end (delta: 95.4MB). Free memory was 104.1MB in the beginning and 188.3MB in the end (delta: -84.2MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. [2023-04-02 00:47:52,445 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 134.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 332.35ms. Allocated memory is still 183.5MB. Free memory was 135.6MB in the beginning and 124.4MB in the end (delta: 11.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.65ms. Allocated memory is still 183.5MB. Free memory was 124.0MB in the beginning and 122.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 580.94ms. Allocated memory is still 183.5MB. Free memory was 122.3MB in the beginning and 104.9MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 1210.08ms. Allocated memory was 183.5MB in the beginning and 278.9MB in the end (delta: 95.4MB). Free memory was 104.1MB in the beginning and 188.3MB in the end (delta: -84.2MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 88]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 75, overapproximation of someBinaryArithmeticFLOAToperation at line 82. Possible FailurePath: [L13] static const float one_modf = 1.0; VAL [\old(one_modf)=8, one_modf=1] [L82] float x = 0.0f / 0.0f; [L83] float iptr; VAL [iptr={6:0}, one_modf=1] [L84] CALL, EXPR modf_float(x, &iptr) VAL [\old(x)=9, iptr={6:0}, one_modf=1] [L16] __int32_t i0, j0; [L17] __uint32_t i; VAL [\old(x)=9, iptr={6:0}, iptr={6:0}, one_modf=1, x=9] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=9, i0=-2139095040, iptr={6:0}, iptr={6:0}, j0=-126, one_modf=1, x=9] [L24] COND TRUE j0 < 23 VAL [\old(x)=9, i0=-2139095040, iptr={6:0}, iptr={6:0}, j0=-126, one_modf=1, x=9] [L25] COND TRUE j0 < 0 VAL [\old(x)=9, i0=-2139095040, iptr={6:0}, iptr={6:0}, j0=-126, one_modf=1, x=9] [L27] ieee_float_shape_type sf_u; [L28] sf_u.word = (i0 & 0x80000000) [L29] EXPR sf_u.value [L29] (*iptr) = sf_u.value [L31] return x; VAL [\old(x)=9, \result=9, i0=-2139095040, iptr={6:0}, iptr={6:0}, j0=-126, one_modf=1, x=9] [L84] RET, EXPR modf_float(x, &iptr) VAL [iptr={6:0}, modf_float(x, &iptr)=9, one_modf=1, x=9] [L84] float res = modf_float(x, &iptr); [L87] EXPR \read(iptr) VAL [\read(iptr)=10, iptr={6:0}, one_modf=1, res=9, x=9] [L87] CALL, EXPR isnan_float(iptr) VAL [\old(x)=10, one_modf=1] [L75] return x != x; VAL [\old(x)=10, \result=1, one_modf=1, x=10] [L87] RET, EXPR isnan_float(iptr) VAL [\read(iptr)=10, iptr={6:0}, isnan_float(iptr)=1, one_modf=1, res=9, x=9] [L87] isnan_float(iptr) && !isnan_float(res) VAL [\read(iptr)=10, iptr={6:0}, isnan_float(iptr) && !isnan_float(res)=1, isnan_float(iptr)=1, one_modf=1, res=9, x=9] [L87] CALL, EXPR isnan_float(res) VAL [\old(x)=9, one_modf=1] [L75] return x != x; VAL [\old(x)=9, \result=0, one_modf=1, x=9] [L87] RET, EXPR isnan_float(res) VAL [\read(iptr)=10, iptr={6:0}, isnan_float(iptr) && !isnan_float(res)=1, isnan_float(iptr)=1, isnan_float(res)=0, one_modf=1, res=9, x=9] [L87] isnan_float(iptr) && !isnan_float(res) VAL [\read(iptr)=10, iptr={6:0}, isnan_float(iptr) && !isnan_float(res)=1, isnan_float(iptr)=1, isnan_float(res)=0, one_modf=1, res=9, x=9] [L87] COND TRUE isnan_float(iptr) && !isnan_float(res) [L88] reach_error() VAL [iptr={6:0}, one_modf=1, res=9, x=9] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 122 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 116 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 283 IncrementalHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 8 mSDtfsCounter, 283 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 93 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-04-02 00:47:52,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...